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Finding the Fourth Proportional to 13,593.06, 18,756 and 7,624.98

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Solution

The fourth proportional to 13,593.06, 18,756 and 7,624.98 is: 10,521.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.06 : 18,756 = 7,624.98 : x
  2. Step 2: Convert to fraction form
    13,593.06/18,756 = 7,624.98/x
  3. Step 3: Cross multiply
    13,593.06x = 18,756 × 7,624.98
  4. Step 4: Simplify right side
    13,593.06x = 143,014,124.88
  5. Step 5: Solve for x
    x = 143,014,124.88/13,593.06
  6. Step 6: Final answer
    x = 10,521.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.